Chris, What is the 440Hz used for, other than tune instruments?
Didier > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Baragwanath, > Chris (TSG) > Sent: Friday, July 18, 2008 4:43 AM > To: [email protected] > Subject: [time-nuts] TimeNuts Assistance Request > > Hi all Time Nuts, > > I am a 'side line' member of the mailing list, ex Broadcast > engineer whose principle fascination is accurate pendulum > clocks and as one who has been lucky enough to have been in > the presence of the ultimate "Clock" here in South Africa, > the SAST (South African Standard Time) cluster. > > We do not have a "free to air" telephonic Time and Freq > service in SA as the NIST does and our principle RF source > (ZUO_ has long been discontinued for economic reasons (Other > than the distant low power coastal stations the transmit a > few mins a day for shipping purposes). > The former Govt Labs and Standards Authorities are now > privatised to lessen the burden on the fiscus and supposed to > be self supporting, so charge and arm and a leg for access to > their facilities, that our tax money paid for in the first place) > > At present, radio propagation conditions are so poor that and > of the NIST and other stations are unusable as a tone > reference or 1 pulse per second reference, and so have to > call the NIST land line number, which is an expensive call > from South Africa. > > As a voluntary / community service, we are trying to > establish a freely accessible tone and pulse service and are > looking for a donation of any unwanted equipment that will > help us get a more stable 440hz and 1 PPS reference running. > (The current oscillator is a good old uncompensated crystal > British Ferrograph Test Set from broadcast days interrupted > by another uncompensated xtal osc which interrupts the tone > to prove the PPS output). > > Any donation of unwanted equipment, especially of more stable > equipment or the ultimate, a GPS Rx board with 1 PPS output > would be greatly appreciated. > > If anyone is prepared to help, I would be most grateful and > would cover the shipping costs to SA. > > The mains in SA is 220v 50hz, but do have access to a 120v > 60hz sinewave inverter unit to safely power US spec equipment. > > Many thanks in advance, > > > Kind regards, > > > Chris D Bagwanath > "Its About Time" > > [EMAIL PROTECTED] > Tel +27 83 700 5057 > Fax: +27 11 792 166 > > > > > > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] To unsubscribe, > go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
